Unbelievable cpu temps

[Vic.]

Hi all.

I'm running:

Athlon 2600+ with a AK824cu cooler
No-name FX5900xt
1 Gig of no-name PC2700 RAM
Biostar M7NCD Motherboard

....in an Antec Sonata with only the rear fan installed.

Yet under stress-testing, such as 12 hours of CPU Burn-in,
th max reported cpu temp is 35 celsius, with the case temps
sitting at 25 celsius (max) during this time. Case temps seem
reasonable, as it's still a bit chilly here...

No errors were reported by burn-in, so the damn thing
can't be suffering *gross* overheatng, but I cannot
believe that an Athlon is running so cool!

How does this MB measure the cpu temps? off the cpu's
inbuilt device, or a thermal diode off the back of the cpu?

Best,

Vic.

 

[Spajky]

Athlon 2600+ with a AK824cu cooler

Biostar M7NCD Motherboard

th max reported cpu temp is 35 celsius, with the case temps
sitting at 25 celsius (max) during this time. Case temps seem
reasonable, as it's still a bit chilly here...

How does this MB measure the cpu temps? off the cpu's
inbuilt device, or a thermal diode off the back of the cpu?

only manufacturer knows for sure; surely not from CPU built-in sensor!

 

[Ctal]

Hi all.

I'm running:

Athlon 2600+ with a AK824cu cooler
No-name FX5900xt
1 Gig of no-name PC2700 RAM
Biostar M7NCD Motherboard

...in an Antec Sonata with only the rear fan installed.

Yet under stress-testing, such as 12 hours of CPU Burn-in,
th max reported cpu temp is 35 celsius, with the case temps
sitting at 25 celsius (max) during this time. Case temps seem
reasonable, as it's still a bit chilly here...

No errors were reported by burn-in, so the damn thing
can't be suffering *gross* overheatng, but I cannot
believe that an Athlon is running so cool!

My system is comparable to yours, down to only one exhaust fan in my case.
With a good HSF and unrestricted airflow through your case those temps are
attainable. I've been playing a CPU intensive game here for the past 4
hours and just checked my temp. CPU is sitting on 37. Like you, I'm pretty
pleased with these results.

 

[Vic.]

fOn Sat, 01 May 2004 05:51:21 GMT, in alt.comp.hardware.pc-homebuilt

{snip stuff about temps}

My system is comparable to yours, down to only one exhaust fan in my case.
With a good HSF and unrestricted airflow through your case those temps are
attainable. I've been playing a CPU intensive game here for the past 4
hours and just checked my temp. CPU is sitting on 37. Like you, I'm pretty
pleased with these results.

When I typed the subject line: "Unbelievable cpu temps", I really
meant unbelievable, as in "Not to be believed", rather than "so very
good it strains my credulity".

I just don't believe that the athlon in my box is ticking over at...
lessee.. fire up motherboard monitor... 26 celsius!. That's cooler
than my body temperature!

Now if I was seeing temps around 40+ at idle, I'd be happy with that,
but the way things stand, I feel sure that I'm not getting an accurate
picture of what's going on in the box, which is slightly concerning
with a new build...

My old XP1900+ would hover around the 45 mark with the retail HSF in a
not particularly well ventilated case (rear fan was 60mm!). Is the
Akasa HSF and the 120mm rear fan on the sonata really giving such an
improvement?

I really wish I could believe it, but as it is I'm a little worried..

Best,

Vic.

 

[Matt]

fOn Sat, 01 May 2004 05:51:21 GMT, in alt.comp.hardware.pc-homebuilt
you wrote:


{snip stuff about temps}



When I typed the subject line: "Unbelievable cpu temps", I really
meant unbelievable, as in "Not to be believed", rather than "so very
good it strains my credulity".

I just don't believe that the athlon in my box is ticking over at...
lessee.. fire up motherboard monitor... 26 celsius!. That's cooler
than my body temperature!

Now if I was seeing temps around 40+ at idle, I'd be happy with that,
but the way things stand, I feel sure that I'm not getting an accurate
picture of what's going on in the box, which is slightly concerning
with a new build...

My old XP1900+ would hover around the 45 mark with the retail HSF in a
not particularly well ventilated case (rear fan was 60mm!). Is the
Akasa HSF and the 120mm rear fan on the sonata really giving such an
improvement?

I really wish I could believe it, but as it is I'm a little worried..

Best,

Vic.

My Barton 2500+ on my M7NCD Pro apparently runs hotter in the BIOS than
in the OS. I don't have a temperature monitor under Linux, but when I
boot into the PC-health section of the BIOS after idling in Linux, the
CPU temp rises slowly from around 37 to around 49 in maybe 15 minutes.

I believe it depends on the BIOS version you are running. There were
supposed to be some bugs in some versions of the BIOS. The newegg
reviews for that board and www.nforcershq.com may have some discussion
of it.

 

[S.Heenan]

Hi all.

I'm running:

Athlon 2600+ with a AK824cu cooler
No-name FX5900xt
1 Gig of no-name PC2700 RAM
Biostar M7NCD Motherboard

...in an Antec Sonata with only the rear fan installed.

Yet under stress-testing, such as 12 hours of CPU Burn-in,
th max reported cpu temp is 35 celsius, with the case temps
sitting at 25 celsius (max) during this time. Case temps seem
reasonable, as it's still a bit chilly here...

No errors were reported by burn-in, so the damn thing
can't be suffering *gross* overheatng, but I cannot
believe that an Athlon is running so cool!

How does this MB measure the cpu temps? off the cpu's
inbuilt device, or a thermal diode off the back of the cpu?

A CPU load temperature of 35°C does seem a little low. Several factors can
contribute to this. Since the system seems stable, run the Prime95 "Torture
Test" for a minimum of 24 hours. Monitor temperatures during this period. If
it's stable, don't worry about what the true temperature(s) may be.
www.mersenne.org

 

[Vic.]

A CPU load temperature of 35°C does seem a little low. Several factors can
contribute to this. Since the system seems stable, run the Prime95 "Torture
Test" for a minimum of 24 hours. Monitor temperatures during this period. If
it's stable, don't worry about what the true temperature(s) may be.
www.mersenne.org

OK, I've given it an initial 6 hours of prime 95.

Periodically watched motherboard monitors dials for the first hour,
when the temperature wavered between 40-41 celsius.

MBM reported a high of 41 and low of 26 (presumably before the test
started), and prime 95 reported no errors.

I whipped the side of the case off and stuck my hand on the base of
the HSF, which felt warm rather than hot, and I am confident that the
HS is seated correctly: I've mounted HSF's several times and took
great care when mounting this one. 41 seems believable.

I'll give it 12 hours of prime 95 overnight, and if the peak temps
don't climb much higher and no errors occur, I'll put my paranoia to
one side and get on with using the pc.

Thanks for the advice and input,

Vic.